How do the health outcomes of a vegetarian diet compare to that of a diet which customarily includes animal products? (DGAC 2010)

Conclusion

Limited evidence is available documenting that vegetarian diets protect against cancer. However, it suggests that vegetarian, including vegan diets, are associated with lower body mass index and blood pressure. Vegan diets may increase risk of osteoporotic fractures. The effect of vegetarian diets on cardiovascular disease, stroke and mortality are discussed further in Part B. Section 2: The Total Diet: Combining Nutrients, Consuming Food.